Metal sash construction



Fil ay 1, 1925 C. B. YOUNG ET AL METAL SASH CONSTRUCTIQN I l l II I FIE.Z.

Flt-5.5.

Jan. 2 926.

Patented-Jen. 12, 1926.

UNITED STATES mvANIA ,PATENT canes.

Tmfis ffouNGflIrcHAaLnsi' 'cAsrAR, or PITTSBURGH, PENNSYLVANIA, As-

sIeNons To PITTSBURGH PLATE GLASS COMPANY, A

CORPORATION OF PENN- METAL SASH CONSTRUCTION.

Application Med May 1, 1925. Serial No. 27,185,

To all whom it concern:

Be it known that we, CHARLES B. YOUNG and CHARLns-J. CAsPAR, citizens of the United States, and residents of Pittsburgh,-

in the county of Allegheny and State of Pennsylvania, have made a new and useful Inventionin a Metal Sash Construction, of which the following is a'specification.

The invention relates to metal sash constructions and particularly to the corners of such constructions. It has for its principal objects, the provision of an' improved slip arrangement whereby the metal sash can give at the corner when the wood framing carrying the construction swells or warps, due to the absorption of moisture either upon the inside of the window or upon the outside. Under such condition of swelling or warping, a strain is thrown upon the glass and in many cases, the glass in the window is broken. A further object is the provision of a slip corner construction which is cheapandwhich involves no difliculty in" applying and removing. One embodiment o the invention is illustrated in the accompanying drawings wherein:

Figure 1 1s a plan view of the corner constructlon. Fig. 2 1s a side elevation, par

tially in section, the section being through the corner piece only and the rest of the corner piece being removed to show the. sash bar construction therebeneath. Fig. 3 is a vertical section on the line III-III of Fig. 1. Fig. 4 is a horizontal'section on the line IV- IV of Fig. 2, the dotted lines showing the corner piece and the clamping members carried thereby in the position occupied before such corner piece is applied. And Figs. 5 and6 are detail side elevation views showing one of the clamping members in its two positions, Fig. 5 showing the position occupied in positioning the member, andFigl 6 showing the position occupied when the device is in clamping osition.

Beferring to the rawin s, 1 and 2 are the usual wood framing mem rs and3 and 4 are the sheets of which approach each other at the ange indicated in Fig. 1 to form the co rner of the window. Lying to the rear of the glass sheets are the rear metal sash members 5 and 6, preferably secured to the member 1 by means of wood screws 7 (Fig. 4) placed at suitable intervals. These sash members 5 and 6 are provided with bottom flanges 8 extending forward of the glass, as indicated in Fig. 3 and provided with flanges 9, as indicated in Fig. 3.

10 and 11 are the front sash members of means of the clamps 14 arranged at suit' able intervals, as shown in Fig. 3 and secured in position by means of the screws 15. This metal sash construction is onewhich is well known in the art under the name of Easy set, but it'will be understood that the corner arrangement, to which this invention is particularly directed, is applicable .to other forms of metal sash construction,

and in fact to any form of such construction which employs outer sash members of metal clamped or secured against the outer faces of the glass sheets.

The corner member 16 is shaped so that it closely follows the ,contour of the sash members 10 and 11, as indicated in Figs. 2 and 3, and is arranged to fit up against the glass sheets at its upper edge and against the frame member 2'at its lower edge, thus covering the joint between the members'lO and 11 and'serving as a connecting means between such members. The ends of the sash members 10 and 11 are provided with slots 17 and 18 lying beneath and covered by the corner piece 16. The corner piece is locked to the sash members by means of a pair of rotatable clampingmembers 19, 19

aving at their inner ends the elongated cam blocks 20, 20. and provided at their outer ends with the slotted heads 21, 21 adapted to be engaged by a screw driver in order to turn them.

In positioning the corner piece 16, the members 19, 19 are turned to the positions .indicated in the dotted lines in Fig. 4 and in full lines in Fig. 5, the blocks 20 lying at this time longitudinally of the slots 17 17, so that when the corner piece is pushedmward to full line position, as indicated in Fig. 4, the blocks 20, 20 will pass through the slots 17, 17 to positions at the rear of the sash members 10 and 11. After thus being positioned, the clamping members are turned 90 degrees so that the blocks 20 lie crosswise of the slots 17, as indicated in full lines in Fig. 4 and in Fig. 6. The blocks 20 are rounded on their inner sides, as indicated in dotted lines in Fig. 4 and the members are so proportioned that when they are turned so that the blocks are crosswise of plied thereto, such as is caused when the wood framing 1 and 2 becomes wet and swells. This permits the metal construction 'to give the amount which is necessary at the corner under these conditions in order to prevent the glass from being broken. The clamping members 19 may be proportioned so that any desired degree of clampmg pressure may be secured, thus permitting the parts to be held in frictional engagement with the degree of firmness which conditions are found to require.

The device is inexpensive in construction and can be applied without -diiiiculty after the .sash members 10 and 11 are secured in position, all that is necessary being to turn the blocks 20 so that they Wlll pass through the slots 17 in the sash members, after which the rotation of the two members locks the parts securelyin position. The device may also be removed very readily by turning the blocks back to the position of Fig. 5,, then lifting oil the corner piece, or prying it loose in case it has become stuck in posi- .tion.

What we claim is:

1; In combination in a sash framing corner construction, a window framing, a pair of glass sheets mounted in the framing and lying at an angle to each other to form a corner, a pair of metal sash members lying on the outer sides of the sheets, and secured against the outer faces of said sheets, and

provided adjacent their ends with longitudinally extending slots, a metal corner piece fitting over the ends of said sash members, and rotatable clamping members carried by the corner member and provided at their inner ends with blocks adapted in one position of rotation to be passed through said slots, and in another position pg l ie crosswise behind' the sash" members "and clamp such members to the corner member.

2. In combination in a sash framing corner construction, a window framing, a pair of glass sheets mounted in the framing and lying at an angleto each other to form a corner, a. pair of metal sash members lyin on the outer sides of the sheets and secure against the outer faces of said sheets, and provided adjacent their ends with longitudinally extending slots, a metal corner piece fitting over the ends of said sash member, and rotatable clamping members carried by the corner member and provided at their inner ends with elongated blocks proportioned so that in one position of rotation, they may be passed through said slots, and in another position of rotation, they will be crosswise behind the sash members, locking such members to the corner member, the said clamping members having screw heads at their outer ends for turning them.

3. 'In combination in a sash framing corner construction, a window framing, a pair of glass sheets mounted in the framing and lying at an angle to each other to form a corner, a pair of metal sash members lyin on the outer sides of the sheets and secure against the outeriaces of said sheets, and provided adjacent their ends with longitudinally extending slots, a metal corner iece fitting over the ends of said sash mem rs and rotatable cam clamping means carried by the corner member and extending through said slots and each adapted in one position to clamp'the corner member to a sash member so that the parts may slip relativ'ely under tension, and in another position to release the corner member from the sash member. Y Y

4. In combination in a sash framing corner construction, a window framing, a pair of glass sheets mounted in the framing and lying at an angle to each other to form a corner, a pair of metal sash members 1y I on the outer sides of the sheets and seen against the outer faces of said sheets, a metal corner member fitting over the ends of said sash members, and a releasable friction connection between each sash member and the corner member operable from the outer side of the corner member.

5. In combination in a sash framing corner construction, a window a pair of glass sheets mounted in the an lying at an angle to'each other to form a corner,-apairofmetdsashlying III on the outer sides of the sheets and secured against the outer faces. of said sheets, a metal corner member fitting over the ends of said sash members, and a releasable friction connection between each sash member and the corner member operable from the -outer side of the corner member, the said connection permitting the application and removal of the corner member independent of the sash members.

In testimony whereof, we have hereunto subscribed our names this 28th day of April, 1925.

. CHARLES B. YOUNG.

CHAS. J. CASPAR. 

